CN111122495A - Handheld near-infrared oil alcohol detection system - Google Patents

Handheld near-infrared oil alcohol detection system Download PDF

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Publication number
CN111122495A
CN111122495A CN202010037493.1A CN202010037493A CN111122495A CN 111122495 A CN111122495 A CN 111122495A CN 202010037493 A CN202010037493 A CN 202010037493A CN 111122495 A CN111122495 A CN 111122495A
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China
Prior art keywords
light source
detector
detection system
charging
hand
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CN202010037493.1A
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Chinese (zh)
Inventor
江伟
庞立波
胡爱琴
刘伟
张文宇
程腾
王向谊
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Csepat Beijing Technology Co ltd
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Csepat Beijing Technology Co ltd
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Priority to CN202010037493.1A priority Critical patent/CN111122495A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3577Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention discloses a handheld near-infrared oil alcohol detection system which comprises a main body shell, wherein a light source, a controller, a battery and a detector are respectively arranged in the main body shell, a touch display and a detection probe are respectively arranged on the main body shell, the detection probe is penetrated through by a light conduction module, the light conduction module is provided with two channels, one channel corresponds to the light source, the other channel corresponds to the detector, the controller comprises a control board and a host module, the control board is respectively connected with the light source, the host module and the battery, and the host module is respectively connected with the touch display and the detector. The structure is simple, the power consumption of the host module is low, and the field detection can be independently realized under the condition of not depending on wireless signals, so that the system is more stable and reliable; non-contact transmission and reflection spectrum collection can be realized; the data acquired on site are analyzed in real time through the single-point detector, so that the on-site detection is more convenient and accurate, and the method is convenient to popularize in the field of petrochemical industry.

Description

Handheld near-infrared oil alcohol detection system
Technical Field
The invention relates to the technical field of near-infrared oil alcohol detection systems, in particular to a handheld near-infrared oil alcohol detection system.
Background
The near infrared spectrum is an electromagnetic radiation wave between visible light (Vis) and Middle Infrared (MIR), the wave band is defined as 780-2526nm, the near infrared spectrum region is consistent with the frequency combination of the vibration of hydrogen-containing groups (O-H, N-H, C-H) in organic molecules and the absorption region of each level of frequency doubling, the characteristic information of the hydrogen-containing groups of the organic molecules in the sample can be obtained by scanning the near infrared spectrum of the sample, and the sample is subjected to component analysis according to the characteristic information. The near infrared spectrum analysis technology has the advantages of rapidness, accuracy, no consumption of chemical reagents, no environmental pollution and the like, so the technology is widely applied to the field of petrochemical industry.
The traditional near-infrared oil alcohol detection system is a laboratory instrument and an online fixed monitoring instrument, and an InGaAs array detector is used and is irradiated on an array photoelectric conversion device after being subjected to grating light splitting; the inside reference cell that needs to increase of this kind of instrument, the light path switch is connected respectively with the detection pond to the reference cell, and light path switch and light source and near-infrared detector optical fiber connection, light signal all have very big loss through the light path switch once, lead to the SNR to reduce, and extremely complicated constitution causes the volume increase, brings very inconvenience to the field measurement. The device has the defects of complicated internal structure, poor spectrum repeatability, low signal-to-noise ratio, high power consumption, high cost and the like, and is difficult to popularize in the field of chemical industry.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a handheld near-infrared oil alcohol detection system which can realize quick, accurate and portable detection.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the utility model provides a hand-held type near-infrared oily alcohols detecting system, includes main body cover, be provided with light source, controller, battery and detector in the main body cover respectively, last touch-control display and the test probe of being provided with respectively of main body cover, the test probe runs through by the light conduction module, the light conduction module has two passageways, one of them the passageway with the light source is corresponding, another the passageway with the detector is corresponding, the controller includes control panel and host computer module, the control panel is connected respectively the light source host computer module with the battery, the host computer module is connected respectively the touch-control display with the detector.
Further, the bottom detachably of main part is connected with charging base, charging base includes the base shell, be provided with the charging panel in the base shell, the input of charging panel connects the extension board, the output of charging panel passes through charging connector and connects the control panel, be provided with the interface on the extension board, the interface includes one or more in first USB mouth, DC charge mouth, net gape and the second USB mouth.
Further, the base shell comprises an upper shell and a lower shell detachably connected with the upper shell.
Further, the charging connector is in contact with the charging plate ejector pin.
Further, the charging plate is connected with the expansion plate through a flexible flat cable.
Further, the main body housing comprises a front shell and a rear shell detachably connected with the front shell.
Furthermore, the light source comprises a light source support, a halogen tungsten lamp and a focusing mirror, the halogen tungsten lamp and the focusing mirror are both fixedly connected to the light source support, the halogen tungsten lamp corresponds to the focusing mirror, and a reflecting cover corresponding to the halogen tungsten lamp is further arranged on the light source support.
Furthermore, the light conduction module is a Y-shaped optical fiber, the focusing mirror is connected with the incident end of the Y-shaped optical fiber, the detector is connected with the recovery end of the Y-shaped optical fiber, and the Y-shaped optical fiber penetrates through the detection probe and is fixedly connected with the detection probe.
Further, the light source support, the detection probe with the equal fixed connection of detector is on the optical element mounting panel, controller fixed connection is on the mainboard mounting panel, the optical element mounting panel with the equal fixed connection of mainboard mounting panel is in main body cover.
Furthermore, a voltage stabilizing module is connected in series on a connecting line between the control panel and the light source.
The invention has the beneficial effects that: the structure is simple, the power consumption of the host module is low, and the field detection can be independently realized under the condition of not depending on wireless signals, so that the system is more stable and reliable; non-contact transmission and reflection spectrum collection can be realized; the application of the reflecting cover and the focusing mirror improves the light efficiency; the detector is a single-point detector and has the characteristics of good spectral repeatability, high signal-to-noise ratio, small volume and the like; the data acquired on site are analyzed in real time through the single-point detector, so that the on-site detection is more convenient and accurate, and the method is convenient to popularize in the field of petrochemical industry.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a first schematic diagram of a handheld near-infrared oil alcohol detection system according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of a handheld near-infrared oil alcohol detection system in accordance with an embodiment of the present invention;
FIG. 3 is an exploded view of a handheld near-infrared oil alcohol detection system according to an embodiment of the present invention;
FIG. 4 is a block diagram of the electrical connections of a handheld near-infrared oil alcohol detection system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a micro optical path assembly according to an embodiment of the present invention;
FIG. 6 is a first circuit diagram of a handheld near-infrared oil alcohol detection system according to an embodiment of the present invention;
FIG. 7 is a second electrical schematic of a hand-held near-infrared oil alcohol detection system according to an embodiment of the present invention;
FIG. 8 is a third circuit diagram of a handheld near-infrared oil alcohol detection system according to an embodiment of the present invention;
FIG. 9 is a fourth circuit diagram of a handheld near-infrared oil alcohol detection system according to an embodiment of the present invention.
In the figure:
010. a front housing; 011. a switch panel; 012. a touch display; 013. a main board mounting plate; 014. a controller; 015. starting a switch; 016. a charging connector; 017. an optical element mounting board; 018. a halogen tungsten lamp; 019. a light source holder; 020. a focusing mirror; 021. detecting a probe; 022. a probe fixing member; 023. a battery; 024. a microUSB line; 025. a detector; 026. a rear housing; 030. an upper shell; 031. an expansion board; 032. soft arranging wires; 033. a lower case; 034. a charging plate; 0311. a first USB port; 0312. a DC charging port; 0313. a network port; 0314. and a second USB port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1 to 9, the handheld near-infrared oil quality alcohol detection system according to an embodiment of the present invention includes a main housing, a light source, a controller 014, a battery 023 and a detector 025 are respectively disposed in the main housing, a touch display 012 and a detection probe 021 are respectively disposed on the main housing, the detection probe 021 is penetrated by a light conduction module, the light conduction module has two channels, one of the channels corresponds to the light source, the other channel corresponds to the detector 025, the controller 014 includes a control board and a host module, the control board is respectively connected to the light source, the host module and the battery 023, and the host module is respectively connected to the touch display 012 and the detector 025.
In a specific embodiment of the present invention, a charging base is detachably connected to the bottom of the main body, the charging base includes a base housing, a charging board 034 is disposed in the base housing, an input end of the charging board 034 is connected to an expansion board 031, an output end of the charging board 034 is connected to the control board through a charging connector 016, and an interface is disposed on the expansion board 031, and the interface includes one or more of a first USB port 0311, a DC charging port 0312, a network port 0313, and a second USB port 0314.
In one embodiment of the present invention, the base housing includes an upper shell 030 and a lower shell 033 removably connected to the upper shell 030.
In an embodiment of the present invention, the charging connector 016 contacts with the ejector pin of the charging board 034.
In an embodiment of the present invention, the charging board 034 is connected to the expansion board 031 through a flexible flat cable 032.
In one embodiment of the present invention, the main body case includes a front case 010 and a rear case 026 detachably coupled to the front case 010.
In an embodiment of the invention, the light source includes a light source support 019, a tungsten halogen lamp 018 and a focusing mirror 020, the tungsten halogen lamp 018 and the focusing mirror 020 are both fixedly connected to the light source support 019, the tungsten halogen lamp 018 corresponds to the focusing mirror 020, and a reflective shade corresponding to the tungsten halogen lamp 018 is further disposed on the light source support 019.
In an embodiment of the present invention, the light conducting module is a Y-shaped optical fiber, the focusing mirror 020 is connected to an incident end of the Y-shaped optical fiber, the detector 025 is connected to a recovery end of the Y-shaped optical fiber, and the Y-shaped optical fiber penetrates through the detecting probe 021 and is fixedly connected to the detecting probe 021.
In an embodiment of the present invention, the light source support 019, the detection probe 021 and the detector 025 are all fixedly connected to an optical element mounting plate 017, the controller 014 is fixedly connected to a main board mounting plate 013, and the optical element mounting plate 017 and the main board mounting plate 013 are all fixedly connected in the main body casing.
In an embodiment of the invention, a voltage stabilizing module is connected in series on a connection line between the control board and the light source.
In order to facilitate understanding of the above-described embodiments of the present invention, the following detailed description of the embodiments of the present invention is provided by way of specific usage.
The handheld near-infrared oil quality alcohol detection system comprises a main body and a charging base, wherein the main body comprises a protective cap, a main body shell, a touch display 012, a controller 014, a detector 025, a battery 023, a light source, a detection probe 021, an optical element mounting plate 017 and a charging connector, and the charging base comprises a charging plate 034, an expansion plate 031 and a base shell.
The main body shell is formed by buckling a front shell 010 and a rear shell 026; the front shell 010 is provided with a touch display 012, and the touch display 012 includes a touch screen and a display; optical element mounting panel 017 and preceding shell 010 screwed connection, controller 014 is located optical element mounting panel 017 the place ahead, light source support 019 screw installation is optical element mounting panel 017 upside, detect probe 021 passes through probe mounting 022 and fixes on optical element mounting panel 017, it is equipped with the independent protection cap that can plug-in to detect probe 021 outside, battery 023 installs in optical element mounting panel 017 upside central part, optical element mounting panel 017 downside installation detector 025, detector 025 rear and casing intermediate installation charging connector, charging connector and outside charging panel 034 thimble contact, expansion board 031 is connected with charging panel 034 winding displacement, expansion board 031 has the net gape 3 of collection, the USB gape (including first USB gape 0311 and second USB gape 0314), DC charges mouthful 0312 etc.
The light source, the detection probe 021, the detector 025 and the Y-shaped optical fiber jointly form a miniature optical path component, and the light source comprises a light source support 019, a halogen tungsten lamp 018 and a focusing mirror 020.
The controller 014 is installed on the mainboard mounting plate 013, the controller 014 comprises a control panel and a host module, the host module is a low-power-consumption PC host, the PC host and the micro light path assembly are combined, and the data acquired on site are analyzed in real time through the single-point detector, so that the site detection is more convenient and accurate, and the device is convenient to popularize in the field of petrochemical industry. The invention can independently realize field detection without depending on wireless signals, thereby being more stable and reliable.
The PC host with low power consumption is a core module, the PC host is fixedly welded with the mainboard mounting plate 013 and is communicated with the control board through a welding pin, and the control board is used for expanding an interface of the core module; the integrated touch display 012 is connected to a PC host computer cable; the control panel passes through voltage stabilizing module and tungsten halogen lamp 018 electric wire connection to opening and closing of tungsten halogen lamp 018 is controlled, and light source support 019 that is equipped with heat radiation structure contacts with backshell 026, in order to improve the radiating effect.
An optical signal sent by a halogen tungsten lamp 018 is transmitted to a detection probe 021 through a focusing mirror 020 and an incident end of a Y-shaped optical fiber, the detection probe 021 outputs the optical signal, the optical signal reacts with a sample in a detection cell, the optical signal is reflected by a reflecting plate in the detection cell after the action, then the optical signal with sample information is sent to a detector 025 through the detection probe 021 and a recovery end of the Y-shaped optical fiber, and the detector 025 uploads data to a PC host through a microUSB wire 024.
An upper interface of the control board is connected with a starting switch 015 through a flexible flat cable 032 so as to control the opening and closing of the whole system through the starting switch 015, and a switch panel 011 corresponding to the starting switch 015 is arranged on the front shell 010; the below interface of controller 014 links together through flexible flat cable 032 with charging connector 016, and charging connector 016 and the contact of charging panel 034 thimble, and charging panel 034 and extension board 031 are installed in the base shell, can charge to battery 023 through the DC mouth of charging 0312 on the extension board 031.
The micro optical path assembly comprises a light source support 019, a halogen lamp (or halogen lamp) 018, a focusing mirror 020, a Y-shaped optical fiber, a detection probe 021 and a detector 025. The light source support 019 center is equipped with the screw hole, the screw hole is used for fixed halogen tungsten lamp 018, the screw hole edge that is equipped with halogen tungsten lamp 018 is equipped with aspherical reflector, the reflector is made by the reflective membrane, focusing mirror 020 and light source support 019 front end threaded connection, the incident end of Y type optic fibre passes through SMA905 flange joint with focusing mirror 020 and is in the same place, the TA that has the spacing measuring probe 021 of non-contact and Y type optic fibre connects formula design as an organic whole, detector 025 passes through SMA905 flange joint with the recovery end of Y type optic fibre and is in the same place.
The working principle of the micro optical path component is that light emitted by a halogen tungsten lamp 018 is converged to a focusing mirror 020, part of scattered light is converged to the focusing mirror 020 through an aspheric surface reflective film of a light source support 019, loss of optical signals is reduced, heat radiation emitted by the scattered light is reduced, the converged optical signals are transmitted to a detection probe 021 through an incident optical fiber (namely, the incident end of a Y-shaped optical fiber), the detection probe 021 with a non-contact limit and an external sample in a detection cell generate optical action, the optical signals reflected by a reflective plate in the detection cell after the action are transmitted to a recovery optical fiber (namely, the recovery end of the Y-shaped optical fiber) through the detection probe 021, the recovery optical fiber transmits the signals to a single-point detector 025 for grating light splitting, the split signals are irradiated on a single-chip photoelectric converter, light intensity is converted into corresponding electric signals, and the electric signals are transmitted to a PC host through a microUSB wire 024, the component spectrum information can be obtained through the PC host, so that the structural information of the specific component can be obtained.
The non-contact transmission and reflection spectrum collection can be realized through the precise matching of the detection probe 021 and the sample detection pool; the light efficiency is improved by the reflector and the focusing mirror 020; the single-point detector has the characteristics of good spectral repeatability, high signal-to-noise ratio, small size and the like.
During field detection, the start switch 015 is touched and pressed, the system is automatically started, the detection probe 021 of the handheld near-infrared oil alcohol detection system is inserted into a spectrum detection pool of a detected sample, the system starts to analyze the detected sample, and after the analysis is finished, the category and the content of liquid are displayed through the touch display 012.
In conclusion, by means of the technical scheme, the structure is simple, the power consumption of the host module is low, and the field detection can be independently realized under the condition of not depending on wireless signals, so that the system is more stable and reliable; non-contact transmission and reflection spectrum collection can be realized; the application of the reflecting cover and the focusing mirror improves the light efficiency; the detector is a single-point detector and has the characteristics of good spectral repeatability, high signal-to-noise ratio, small volume and the like; the data acquired on site are analyzed in real time through the single-point detector, so that the on-site detection is more convenient and accurate, and the method is convenient to popularize in the field of petrochemical industry.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an oily alcohol detecting system of hand-held type near-infrared, includes main body cover, its characterized in that, be provided with light source, controller (014), battery (023) and detector (025) in the main body cover respectively, be provided with touch-control display (012) and test probe (021) on the main body cover respectively, test probe (021) is run through by the light conduction module, the light conduction module has two passageways, one of them the passageway with the light source is corresponding, another the passageway with detector (025) are corresponding, controller (014) includes control panel and host module, the control panel is connected respectively the light source the host module with battery (023), the host module is connected respectively touch-control display (012) with detector (025).
2. The hand-held near-infrared oil quality alcohol detection system according to claim 1, wherein a base housing is detachably connected to the bottom of the main housing, a charging panel (034) is disposed in the base housing, an input end of the charging panel (034) is connected to an expansion panel (031), an output end of the charging panel (034) is connected to the control panel through a charging connector (016), an interface is disposed on the expansion panel (031), and the interface includes one or more of a first USB port (0311), a DC charging port (0312), a net port (0313), and a second USB port (0314).
3. The hand-held near-infrared oil alcohol detection system of claim 2, wherein the base housing comprises an upper shell (030) and a lower shell (033) removably connected to the upper shell (030).
4. The hand-held near-infrared oil quality alcohol detection system of claim 2, wherein the charging connector (016) is in contact with the charging pad (034) thimble.
5. The hand-held near-infrared oil quality alcohol detection system according to claim 2, wherein the charging board (034) is connected to the expansion board (031) via a flexible flat cable (032).
6. The hand-held near-infrared oil alcohol detection system of claim 1, wherein the body housing comprises a front shell (010) and a rear shell (026) removably coupled to the front shell (010).
7. The hand-held near-infrared oily alcohol detection system of claim 1, wherein the light source comprises a light source support (019), a tungsten halogen lamp (018) and a focusing mirror (020), the tungsten halogen lamp (018) and the focusing mirror (020) are both fixedly connected to the light source support (019), the tungsten halogen lamp (018) corresponds to the focusing mirror (020), and a reflecting cover corresponding to the tungsten halogen lamp (018) is further arranged on the light source support (019).
8. The hand-held near-infrared oil quality alcohol detection system according to claim 7, wherein the light transmission module is a Y-shaped optical fiber, the focusing lens (020) is connected to an incident end of the Y-shaped optical fiber, the detector (025) is connected to a recovery end of the Y-shaped optical fiber, and the Y-shaped optical fiber penetrates through the detection probe (021) and is fixedly connected with the detection probe (021).
9. The hand-held near-infrared oleaginous alcohol detection system of claim 7, wherein the light source support (019), the detection probe (021), and the detector (025) are all fixedly connected to an optical element mounting plate (017), the controller (014) is fixedly connected to a main plate mounting plate (013), and the optical element mounting plate (017) and the main plate mounting plate (013) are all fixedly connected within the main body housing.
10. The system according to claim 1, wherein a voltage regulator module is connected in series to a connection line between the control board and the light source.
CN202010037493.1A 2020-01-14 2020-01-14 Handheld near-infrared oil alcohol detection system Pending CN111122495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010037493.1A CN111122495A (en) 2020-01-14 2020-01-14 Handheld near-infrared oil alcohol detection system

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Application Number Priority Date Filing Date Title
CN202010037493.1A CN111122495A (en) 2020-01-14 2020-01-14 Handheld near-infrared oil alcohol detection system

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CN111122495A true CN111122495A (en) 2020-05-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117990636A (en) * 2023-08-24 2024-05-07 上海暄泓科学仪器有限公司 Handheld ultraviolet spectrometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117990636A (en) * 2023-08-24 2024-05-07 上海暄泓科学仪器有限公司 Handheld ultraviolet spectrometer

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